Observation information
- date-obs: 2025-05-02
- time-obs: 11:05:16.631000000
- date-end: 2025-05-02
- time-end: 16:29:17.587300000
- obs_id: C09_011T05_9000006466
- exposure: 7517.81248611
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C09_011T05_9000006466_51896cztM0_level2.fits
| modeM0/AS1C09_011T05_9000006466_51896cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,274,212,160 | 210,571,200 |
Size | 2.1 GB
| 200.8 MB
|
Events in quadrant A | 15,904,968 | 1,537,081 |
Events in quadrant B | 19,232,208 | 1,422,500 |
Events in quadrant C | 11,918,311 | 1,542,922 |
Events in quadrant D | 35,736,634 | 625,905 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 369 | 0 |
B | 0 | 370 | 0 |
C | 0 | 370 | 0 |
D | 0 | 369 | 1 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 59696 | 105 |
B | 0 | 69599 | 136 |
C | 0 | 47533 | 68 |
D | 0 | 118846 | 296 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13 | 0 |
B | 0 | 13 | 0 |
C | 0 | 13 | 0 |
D | 0 | 13 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 18071 | 1398 | 7.736152% |
B | 18074 | 3847 | 21.284718% |
C | 18072 | 758 | 4.194334% |
D | 18054 | 11314 | 62.667553% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 19442 | 18096 | 998 | 998 | 5.13% | 5.52% |  |
B | 19442 | 18094 | 2801 | 2801 | 14.41% | 15.48% |  |
C | 19442 | 18092 | 485 | 485 | 2.49% | 2.68% |  |
D | 19440 | 18076 | 9563 | 9563 | 49.19% | 52.90% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 12 | 3 | 2644386 | 5742.65 | 1863 | 1817 | 460.2 |
A | 5 | 241 | 1047686 | 2272.81 | 1863 | 1817 | 460.2 |
A | 15 | 174 | 782884 | 1697.36 | 1863 | 1817 | 460.2 |
B | 4 | 170 | 8636839 | 23703.65 | 1722 | 1661 | 364.3 |
B | 10 | 254 | 702249 | 1923.12 | 1722 | 1661 | 364.3 |
B | 4 | 171 | 594419 | 1627.13 | 1722 | 1661 | 364.3 |
C | 3 | 233 | 529939 | 1047.18 | 1848 | 1827 | 504.3 |
C | 15 | 230 | 516033 | 1019.6 | 1848 | 1827 | 504.3 |
C | 13 | 3 | 510357 | 1008.35 | 1848 | 1827 | 504.3 |
D | 11 | 129 | 16065277 | 43286.64 | 1192 | 1145 | 371.1 |
D | 6 | 42 | 8200628 | 22094.44 | 1192 | 1145 | 371.1 |
D | 12 | 17 | 1954236 | 5262.83 | 1192 | 1145 | 371.1 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
 |
 |
Quadrant B |
Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor |  |
D_VDD |  |
Temperature 1 |  |
Veto HV Monitor |  |
Veto LLD |  |
Alpha Counter |  |
_CPM_Rate |  |
CZT Counter |  |
+2.5 Volts monitor |  |
+5 Volts monitor |  |
_ROLL_ROT |  |
_Roll_DEC |  |
_Roll_RA |  |
Veto Counter |  |